Question

HELPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!! LCD of 9/14 and 2/21

Answer 1

Least Common Denominator (9/14 and 2/21)

The least common denominator is equal to the least common multiple of the denominators: 14 and 21 
The multiples of 14 are: 14, 28, 42, 56, ...
The multiples of 21 are: 21, 42, 63, ...

The least common multiple of 14 and 21, therefore, is 42, and the least common denominator of (9/14 and 2/21) is also 42

Answer:
$\boxed{42}\end{array}}\qquad\quad\checkmark$